According to an aspect of the present invention there is provided a tip for fitting to a nozzle of an air abrasion dental tool. The tip comprises a tip body having a central bore that extends through the length of the tip body from an inlet end to an outlet end. The inlet end of the tip body is configured to receive and form an interference fit with the nozzle of the dental tool. The outlet end of the central bore is provided with at least one flexible prong that extends outwardly from the outlet end in a direction that is substantially parallel to longitudinal axis of the central bore.

In a cleaning method for removing adhesive residues from surfaces, in particular after separating an adhesive connection between adhesively joined partners, liquid carbon dioxide from a reservoir enters a jet, apparatus and is guided there through a first dosing unit into an expansion chamber wherein a cold-resistant liquid is then supplied to a mixture created in the expansion chamber from gaseous carbon dioxide and carbon dioxide particles and wherein the mixture, to which the cold-resistant liquid has been added, exits the jet apparatus via an outlet opening thereof. Furthermore, a jet apparatus removes adhesive residues from surfaces.

In a cleaning method for removing adhesive residues from surfaces, in particular after separating an adhesive connection between adhesively joined partners, liquid carbon dioxide from a reservoir enters a jet, apparatus and is guided there through a first dosing unit into an expansion chamber wherein a cold-resistant liquid is then supplied to a mixture created in the expansion chamber from gaseous carbon dioxide and carbon dioxide particles and wherein the mixture, to which the cold-resistant liquid has been added, exits the jet apparatus via an outlet opening thereof. Furthermore, a jet apparatus removes adhesive residues from surfaces.

A translatable, ultra-high pressure liquid jet system includes a translatable frame configured to maintain mechanical contact with a rail. The liquid jet system includes a liquid jet processing head affixed to the frame and configured to maintain a distance from the rail and provide a liquid jet that contacts the rail. The liquid jet system also includes an ultra-high pressure liquid pump in fluid communication with the liquid jet processing head. The ultra-high pressure liquid pump is configured to supply pressurized liquid to the liquid jet processing head.

An independent safety warning and notification system for sandblasting operations that require an operator of a blasting hose to be remotely positioned to the blasting pot operator. A dedicated activation switch assembly is secured to an existing sandblast hose with a separate dead man switch or alternately with an integrated dead man switch allowing the blast nozzle operator to communicate critical information to the pot operator. A warning notification light display and audible alarm assembly with a remotely positional warning light alarm is selectively secured near the pot operator for notification that a prescribed predetermined action has been requested by the blast nozzle operator or an emergency situation by activation of the switch assembly.

An independent safety warning and notification system for sandblasting operations that require an operator of a blasting hose to be remotely positioned to the blasting pot operator. A dedicated activation switch assembly is secured to an existing sandblast hose with a separate dead man switch or alternately with an integrated dead man switch allowing the blast nozzle operator to communicate critical information to the pot operator. A warning notification light display and audible alarm assembly with a remotely positional warning light alarm is selectively secured near the pot operator for notification that a prescribed predetermined action has been requested by the blast nozzle operator or an emergency situation by activation of the switch assembly.

A method and apparatus produce an enhanced blast stream which may be directed at a workpiece. The enhanced blast stream has higher energy allowing the blast stream to remove difficult to remove coatings from substrates. A heated flow is combined with an entrained particle flow and expelled through a nozzle. The heated flow results in more energy being imparted to the coating.

An abrasive blasting system that includes a blast hose, and a deadman assembly coupled with the blast hose. The deadman assembly further includes a primary deadman signal device and a secondary deadman signal device. The deadman also has a base frame, with each of the primary deadman signal device and the secondary deadman signal device coupled with the base frame. There is a trigger member movably coupled with the base frame, the trigger member configured to contact and move the primary deadman signal device to a signal-flow position, and also to contact and move the secondary deadman signal device to a secondary signal-flow position.

An abrasive blasting system that includes a blast hose, and a deadman assembly coupled with the blast hose. The deadman assembly further includes a primary deadman signal device and a secondary deadman signal device. The deadman also has a base frame, with each of the primary deadman signal device and the secondary deadman signal device coupled with the base frame. There is a trigger member movably coupled with the base frame, the trigger member configured to contact and move the primary deadman signal device to a signal-flow position, and also to contact and move the secondary deadman signal device to a secondary signal-flow position.

An insert securable to the end of a hose is disclosed, the insert primarily intended to improve flow of a fluid emerging from the hose. The insert includes a generally cylindrical body portion, said body portion comprising an internal helical channel, the axis of said helical channel being offset from the insert axis, and conveniently parallel thereto.